Biological Activities of Aerial Parts Extracts of Euphorbia characias

Table 4

Effects of E. characias extracts on HIV-1 RT-associated functions.

Extracts		IC50 (g/mL)
		HIV-1	HIV-1
		RDDP	RNase H
Leaves	Aqueous	0.785 ± 0.003	1.95 ± 1.03
	Ethanolic	0.75 ± 0.028	0.685 ± 0.155
Stems	Aqueous	6.87 ± 0.81	2.235 ± 0.245
	Ethanolic	3.05 ± 0.2	1.615 ± 0.035
Flowers	Aqueous	1.03 ± 0.0	1.51 ± 0.53
	Ethanolic	0.26 ± 0.08	0.33 ± 0.1
Efavirenz		0.0016 ± 0.0003	ND
RDS1759		ND	7.1 ± 0.5

Extracts concentration required to inhibit HIV-1 RT-associated functions by 50%.
Values expressed in M concentration.
Not done.
Means followed by distinct letters in the same column are significantly different ().